DE69414632T2 - Disk drive spindle phase lock to a reference signal - Google Patents

Disk drive spindle phase lock to a reference signal

Info

Publication number
DE69414632T2
DE69414632T2 DE1994614632 DE69414632T DE69414632T2 DE 69414632 T2 DE69414632 T2 DE 69414632T2 DE 1994614632 DE1994614632 DE 1994614632 DE 69414632 T DE69414632 T DE 69414632T DE 69414632 T2 DE69414632 T2 DE 69414632T2
Authority
DE
Germany
Prior art keywords
reference signal
disk drive
phase lock
drive spindle
spindle phase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE1994614632
Other languages
German (de)
Other versions
DE69414632D1 (en
Inventor
William F Even
William D Lewis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Quantum Corp
Original Assignee
Quantum Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/054,652 external-priority patent/US5438464A/en
Priority claimed from US08/054,657 external-priority patent/US5448428A/en
Application filed by Quantum Corp filed Critical Quantum Corp
Application granted granted Critical
Publication of DE69414632D1 publication Critical patent/DE69414632D1/en
Publication of DE69414632T2 publication Critical patent/DE69414632T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/28—Speed controlling, regulating, or indicating
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/002—Programmed access in sequence to a plurality of record carriers or indexed parts, e.g. tracks, thereof, e.g. for editing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/11—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
    • G11B27/13—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier the information being derived from movement of the record carrier, e.g. using tachometer
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
DE1994614632 1993-04-23 1994-04-25 Disk drive spindle phase lock to a reference signal Expired - Fee Related DE69414632T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/054,652 US5438464A (en) 1993-04-23 1993-04-23 Synchronization of multiple disk drive spindles
US08/054,657 US5448428A (en) 1993-04-23 1993-04-23 Phase locking a disk drive spindle to a reference signal

Publications (2)

Publication Number Publication Date
DE69414632D1 DE69414632D1 (en) 1998-12-24
DE69414632T2 true DE69414632T2 (en) 1999-07-22

Family

ID=26733311

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1994614632 Expired - Fee Related DE69414632T2 (en) 1993-04-23 1994-04-25 Disk drive spindle phase lock to a reference signal

Country Status (2)

Country Link
EP (1) EP0621595B1 (en)
DE (1) DE69414632T2 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4477750A (en) * 1982-05-17 1984-10-16 International Business Machines Corporation Multi-level disk drive motor speed control
US4815063A (en) * 1985-09-13 1989-03-21 Yamaha Corporation Disc motor control circuit for controlling the rotation of a disc in a disc playing device
US4907105A (en) * 1988-03-11 1990-03-06 Maxtor Corporation Synchronized spindle control for disk drives
JP2770986B2 (en) * 1989-06-23 1998-07-02 富士通株式会社 Master pulse switching method for external storage device
US5237466A (en) * 1989-11-02 1993-08-17 International Business Machines Corporation Method and apparatus for programmably controlling spindle synchronization and phase among disk drives in a storage subsystem
JPH04313859A (en) * 1991-04-12 1992-11-05 Nec Ibaraki Ltd Magnetic disk device
JPH04335255A (en) * 1991-05-13 1992-11-24 Mitsubishi Electric Corp Method and device for controlling synchronization of disk

Also Published As

Publication number Publication date
DE69414632D1 (en) 1998-12-24
EP0621595A2 (en) 1994-10-26
EP0621595A3 (en) 1995-02-15
EP0621595B1 (en) 1998-11-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee